Accidental purple

There are a couple "blue" males in our tanks and we always thought they're quite special. The blue colouration is different from the typical steel or royal blue. They have a black body, with a white base colour (courtesy of copper), and a very nice deep purplish colour. A not-so-good sample of them is here (this one is a bit over-exposured and blue background!).

Perhaps this is a way to produce a purple colour? If you notice, many purple colouration is actually a lavendar variant. They have strong red in the body. Well, what would you need to produce a pure purple colour without red in it?

Talking about pure random thoughts, perhaps we can mix some ideas to see if we can produce that purple....

The nice thing about copper (specifically copper green), they have the shiny purple colour if you shine torch to it on different angle. Now, if one would be able to extract that purplish colouration and mix it with blue, over some generations you'd create a purple wouldn't it? Well, not really...since both blue and copper are not technically compatible. You'll get lots of red-wash. The blue produced from this mix is what we're seeing as "super blue" or any of the metalic blue variants.

A completely accidental that we've done was to mix copper, lavendar, and green variants. Whoala, F3 produces a nice set of deep purplish colour with clean non-red showing up. F4 may not inherit these colour though, since we'd expect copper/multi variation will be thrown, but surely a couple of them will produce consistent purple...Time to experiment to see if we can achieve this.